Process of treating nickel ores, &amp;c.



UNITED STATES PATENT OFFICE;

RALPH W. E. MAcIVOR, OF LONDON, ENerQXnDQASsIGNORTO METALS EX- TRACTION CORPORATION LIMITED, or LONDON, ENGLAND, A eoR PORATION.

Specification of Letters Patent.

Patent eel March 12, 1907.

lpplicaticn filedvFebruary 2,1906. Seriiil'No. 299,181.

wl'o all whom it mag concern;

Be it known that I, RALPH WALDO EMER- I known manner. son MAoIvoR, a subject of the King of Great Britain, residing at London, England, have invented certain new and useful 'Im-f proveinents in Processes for Treating Nickel Ores or Oxidized Nickel Mattes; and. I dohereby declare the followin to bee full, clear, and exact description 0 the invention, such as will enable others skilled in the art to which it appertains tornake and use the same. i

This invention relates to an improved proc ess for treating nickel ores or oxidized mattes containing nickel, whereby. a solution of chlorid of nickel is obtained, from which the nickel can berecovered by' any of the known processes. I

According to this invention ground ore containing nickel or mixed oxids of metal resulting from the roasting of mattes or regulus is digested under pressure in a solution of chlorid of magnesium, which gives a solution containing chlorid of-nickel, from-Which lthe nickel can be recovered in anywell- Having thus described my invention, what I claim as new, and'desire'tosecure by Let ters- Patent, is k v 1'. In the process oftreating nickel ores or oxidized nickel mattes, mixing the ground;

ore or niekeloxids with chlorid of magnesium, and subsequently heating the mixture, sub stantially as described. 3 l y 2..The process of treating nickel ores or oxidized nickel mattes for the recovery of nickel, consisting of the ground ore or oxid of nickel with chlorid of magnesium,

heating the mixture and then lixiviating then.-

same to yield a solution of chlorid ofnickel,

substantially as described. .l

p In witness whereof I have hereunto set hand in the presence of two witnesses,

- 'RALPn .W..E. MAOIVOR.

Witnesses:

FREDERIQPRINGE, H. D. JAMESON. 

